Two approaches using light
Fluorescence and transillumination are different techniques that can help evaluate tooth changes. In near-infrared transillumination, light passes through a tooth and some defects appear as darker areas because they affect light transmission. A device’s useful applications depend on its technology.
Read more: American Dental Association · Caries Risk Assessment and Management, U.S. Food and Drug Administration / manufacturer submission · DEXIS CariVu 3-in-1 510(k) summary, K182712.
A supporting tool, not the whole answer
These techniques complement the clinical examination, risk assessment, and appropriate radiographs. A device image or reading should be interpreted in that context. A light-based finding does not turn a treatment decision into a simple yes-or-no result.
Read more: American Dental Association · Caries Risk Assessment and Management.
Understand what a test would add
If a light-based assessment is proposed, ask what the clinician is investigating and how the result could change the plan. You can also ask what the method cannot show and how the finding will be checked against the rest of the examination.
For broader context, read about dental X-rays and how cavity repair is considered.
Common questions
Does a light-based test replace all X-rays?
No. Different methods contribute different information and are chosen for the clinical question.
Can I request this as a routine add-on?
Start by asking what needs to be assessed and whether the method would add useful information.
General patient information. Your examination and health history determine the advice and treatment appropriate for you.